摘要
本文介绍了TFC?-S型纳滤膜分离电镀镍漂洗水的试验研究,讨论了温度、操作压力、浓差极化、共存离子对膜分离性能的影响。结果表明,这种纳滤膜对电镀镍漂洗水中Ni2+的去除率高于99.5%,透过液中Ni2+质量浓度小于1mg/L;对CODCr的去除率大于96%,透过液中CODCr低于14mg/L,达到国家工业废水排放标准(GB8978-1996),可以直接排放或回用于镀件漂洗。
The separation of rinse water of nickel electroplating with TFC-S nano-filtration membrane was studied. The effects of temperature, pressure, concentration polarization and coexisting ions on the separating performance of nano-filtration membrane were investigated. The results showed that the removal efficiency of nickel is higher than 99.5% and with concentration in permeation liquid lower than 1 mg/L; the removal efficiency of CODcr is higher than 96% with CODcr in permeation liquid lower than 14 mg/L. After nano-filtration membrane separation, the rinse water can meets the national integrated wastewater discharge standard （GB8978-1996）, and can be discharged directly or used as rinse water again.
出处
《电镀与涂饰》
CAS
CSCD
2007年第4期55-58,共4页
Electroplating & Finishing
关键词
纳滤
电镀镍
漂洗水
镍离子
分离性能
nano-filtration
nickel electroplating
rinse water
Ni2^＋
separation
